Bottle cap



FIG. 1 is a perspective view of a bottle cap showing our new design;

FIG. 2 is a front elevational view of the bottle cap in a closed position;

FIG. 3 is a front elevational view of the bottle cap in open position;

FIG. 4 is a side elevational view; and,

FIG. 5 is a top plan view.

The bottom and interior of the bottle cap form no part of the claimed design. 

The ornamental design for a bottle cap, as shown and described. 